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Finding the Fourth Proportional to 5,730.90, 8,584.20 and 4,637.40

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Solution

The fourth proportional to 5,730.90, 8,584.20 and 4,637.40 is: 6,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,730.90 : 8,584.20 = 4,637.40 : x
  2. Step 2: Convert to fraction form
    5,730.90/8,584.20 = 4,637.40/x
  3. Step 3: Cross multiply
    5,730.90x = 8,584.20 × 4,637.40
  4. Step 4: Simplify right side
    5,730.90x = 39,808,369.08
  5. Step 5: Solve for x
    x = 39,808,369.08/5,730.90
  6. Step 6: Final answer
    x = 6,946.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.